[NHCOLL-L:2613] RE: Fwd: Re: Probole

[James Case]

There are a number of programs that convert TRS to latitude and 
longitude "center points" for localities.
Searching for "convert township range to latitude longitude" on Google 
is a good start. Some applications
are free too.
Good luck,
James


White, Rich wrote:

>USGS topo maps have Township, Range and Section designations on them.  I
>don't think there is any quick way (ie, algorithm) to convert.  Also,
>the TR designations don't correspond to "a" locality - the sections are
>one square mile in extent, and old collections can have Section, quarter
>section or quarter-quarter sections indicated.  A given Township and
>Range includes 36 sections, and is therefore 6 miles on a side, for a
>total of 36 square miles.  Note also that for some areas, T & R
>designations were never formally given.
>
>You will also find that the section lines (and therefore T and R lines)
>were often "bent", and are not perfectly rectangular.  Providing
>metadata guidelines for handling Township, Range and Section data on
>localities is a problem.  Probably the easiest is to pick the center
>point of the smallest division given (Section, quarter Section) and flag
>it to indicate that this is an "area" rather than a precise location.
>
>Rich
>
>
> 
>Richard S. White, Jr.
>Director
>International Wildlife Museum
>4800 West Gates Pass Road
>Tucson, Arizona 85745
>520-629-0100 extension 252
>Fax: 520-618-3561
>
>
>
>-----Original Message-----
>From: owner-nhcoll-l at lists.yale.edu
>[mailto:owner-nhcoll-l at lists.yale.edu] On Behalf Of Timothy Tomon
>Sent: Friday, April 01, 2005 8:35 AM
>To: NHCOLL-L at lists.yale.edu
>Subject: [NHCOLL-L:2610] Fwd: Re: Probole
>
>
>Hello,
>
>I was wondering if any knows of a way to convert Township, Range,
>Section data, apparently known as the Public Land Survey System, to
>coordinates?
>
>This is an example of one such locality that I have, in case I have not
>adequately described what I am talking about:  
>
>Michigan, Baraga County, T49N R34W S15	
>
>
>Thanks for any help you can provide!
>Tim Tomon
>
>
>
>  
>